Sphere - Code Metrics - Inspection of "Merge pull request #32 from lucijabrezocnik/featur..." - NiaOrg/NiaPy - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 71dc45...9b6f89 )

by Grega

created 2018-02-15 08:26 UTC

Sphere A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	14
Duplicated Lines	0 %

Importance

Changes	5
Bugs	0	Features	1

Metric	Value
c	5
b	0
f	1
dl	0
loc	14
rs	10
wmc	4

# encoding=utf8
# pylint: disable=anomalous-backslash-in-string
"""Implementation of Sphere functions.

Date: 2018

Authors: Iztok Fister Jr.

License: MIT

Function: Sphere function

Input domain:
    The function can be defined on any input domain but it is usually
    evaluated on the hypercube x_i ∈ [0, 10], for all i = 1, 2,..., D.

Global minimum:
    f(x*) = 0, at x* = (0,...,0)

LaTeX formats:
    Inline: $f(x) = \sum_{i=1}^D x_i^2$
    Equation: \begin{equation}f(x) = \sum_{i=1}^D x_i^2 \end{equation}
    Domain: $0 \leq x_i \leq 10$

Reference paper:
    Jamil, M., and Yang, X. S. (2013).
    A literature survey of benchmark functions for global optimisation problems.
    International Journal of Mathematical Modelling and Numerical Optimisation,
    4(2), 150-194.
"""

import math

__all__ = ['Sphere']


class Sphere(object):
    def __init__(self, Lower=-5.12, Upper=5.12):
        self.Lower = Lower
        self.Upper = Upper

    @classmethod
    def function(cls):
        def evaluate(D, sol):
            val = 0.0
            for i in range(D):
                val += math.pow(sol[i], 2)
            return val

        return evaluate


1			# encoding=utf8
2			# pylint: disable=anomalous-backslash-in-string
3			"""Implementation of Sphere functions.
4
5			Date: 2018
6
7			Authors: Iztok Fister Jr.
8
9			License: MIT
10
11			Function: Sphere function
12
13			Input domain:
14			The function can be defined on any input domain but it is usually
15			evaluated on the hypercube x_i ∈ [0, 10], for all i = 1, 2,..., D.
16
17			Global minimum:
18			f(x) = 0, at x = (0,...,0)
19
20			LaTeX formats:
21			Inline: $f(x) = \sum_{i=1}^D x_i^2$
22			Equation: \begin{equation}f(x) = \sum_{i=1}^D x_i^2 \end{equation}
23			Domain: $0 \leq x_i \leq 10$
24
25			Reference paper:
26			Jamil, M., and Yang, X. S. (2013).
27			A literature survey of benchmark functions for global optimisation problems.
28			International Journal of Mathematical Modelling and Numerical Optimisation,
29			4(2), 150-194.
30			"""
31
32			import math
33
34			__all__ = ['Sphere']
35
36
37			class Sphere(object):
38			def __init__(self, Lower=-5.12, Upper=5.12):
39			self.Lower = Lower
40			self.Upper = Upper
41
42			@classmethod
43			def function(cls):
44			def evaluate(D, sol):
45			val = 0.0
46			for i in range(D):
47			val += math.pow(sol[i], 2)
48			return val
49
50			return evaluate
51

NiaOrg / NiaPy

Push — master ( 71dc45...9b6f89 )

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